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Rainfall Events calculator

CS-v4 SSc4: Rainwater management
posted by Simona Kabadova on Oct 20, 2021, 5:11 am

The project is situated in Sofia, Bulgaria. From the our National Institute of Meteorology and Hydrology we have historical data for daily precipitation only for two years - 2020 and 2021. As I...

REACH optimization maximum concentration

NC-v4.1 MRc4: Material Ingredients
posted by Pablo Fuentes on Aug 25, 2021, 5:34 am


  I found that now LEED v4.1 requires that the material doesn't exceed a concentration of 100 ppm (0.01%) for the substances found on the Authorization, Restriction and Candidate lists...

Last reply: Lise Dannesboe, Oct 20, 2021, 7:35 am

Legal Wood Pilot Credit and MR BPDO Sourcing of Raw Materials / Alternate Compliance Path

CI-v4.1 IN101: Innovation
posted by John Masters on Oct 19, 2021, 5:38 pm

Need some direction regarding the Legal Wood Pilot Credit & ACP - MR BPDO Sourcing Raw Materials

o What backup documentation do I need to confirm that the product is from a“legal (non-...

Provide USGBC access to ENERGY STAR Portfolio Manager account

EBOM-v4 EAp2: Minimum Energy Performance
posted by CT G on Oct 19, 2021, 4:32 pm


We're uploading all information to LEED Online for a LEED V4 O+M EB, and prerequisite Minimum Energy Performance requires "The project team has provided USGBC access to ENERGY STAR...

WEpc94 No Cooling Tower

Pilot-Credits WEpc94: No Cooling Tower
posted by David Hubka on Sep 20, 2021, 2:48 pm

This ACP will soon be closed. Once closed it will not be available regardless of project registration date. 

Last reply: David Hubka, Oct 19, 2021, 1:19 pm

ENERGY STAR equipment

CI-v4 EAc2: Optimize Energy Performance
posted by Michael d on Dec 8, 2020, 5:40 am

Do laptops need to be included within this list? Also, does any old equipment such as old laptops or others have to be included in the list as well, or are we only looking at the new equipment...

Last reply: Courtney Royal, Oct 19, 2021, 1:02 pm

Retain Parking Spaces Well Below Basis Rate for Building Type, still comply?

NC-v4.1 LTc7: Reduced parking footprint
posted by on Sep 22, 2021, 9:31 am

I am working on a 40,000sf building with 7 existing parking spaces. The owner does not wish to add more. The basis rate for this building type from Appendix 4 is ~70 so 7 would be well below a 60...

Last reply: Kristian Kicinski, Oct 18, 2021, 6:42 pm

Green Cleaning no longer an option?

NC-v4 INc1: Innovation
posted by emily reese moody on Jan 25, 2018, 6:27 pm

Hi all, 

I was just looking for the criteria for Green Cleaning for my v4 NC project, but do not see it listed on USGBC in neither the Innovation Catalog, nor the Pilot Credits. I double-...

Last reply: Jackson Ludwig, Oct 18, 2021, 6:06 pm

New v4.1 appendix 4 Table 1, Base Ratios for Parking missing?

NC-v4.1 LTc7: Reduced parking footprint
posted by Adolfo Silva on Jan 5, 2021, 8:41 am

and it does not have Appendix 4 (or Appendices 2 and 3, for that matter). Does anyone know where these are posted? My Google search led me to this forum. Log in or register to post comments David Hubka...

Last reply: David Hubka, Oct 18, 2021, 4:44 pm

modelling and presenting GSHP results

NC-v4 EAp2: Minimum Energy Performance
posted by Manuel Martin Delgado on Oct 14, 2021, 11:06 am


I am working on a building that includes GSHP to cover part of the heating and cooling load. Normally, due to software constrains, we tend to just use excel calculators to predict the...

Last reply: jamy bacchus, Oct 18, 2021, 3:23 pm